UserKnownHostsFile ./ssh_known_hosts Host caribou #HostName 2001:910:1204:1::23 HostName 192.168.1.23 Host carcajou #HostName 2001:910:1204:1::22 HostName 192.168.1.22 Host cariacou #HostName 2001:910:1204:1::21 HostName 192.168.1.21 Host spoutnik HostName 10.42.0.2 Port 220